Viana do Castelo Weather in July
July in Viana do Castelo brings high temperatures, with highs of 23°C (73°F) and nights dropping to 16°C (61°F). It's also the driest month of the year, ideal for those who want to avoid rain.
Rainfall in Viana do Castelo in July
This is the driest month, making it a great choice for planning outdoor excursions. Records from the past 30 years suggest around 7 days of rain, with 29 mm (1.1 in) average for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in Viana do Castelo in July
The perfect temperature in Viana do Castelo in July makes it a solid month to visit, with 23°C (73°F) during the day and 16°C (61°F) at night. July is part of the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Viana do Castelo in July
Enjoy a sunny month with about 307 hours of sunshine, the clear skies make Viana do Castelo even more beautiful.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Viana do Castelo.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Viana do Castelo's climate page.
Viana do Castelo Temperature in July
Min Temperature
16°C (61°F)
Max Temperature
23°C (73°F)
Chance of Rain
23%
Precipitation
29 mm (1.1 in)
Rainy days
7 days
Humidity
73% *
Sunshine
307 hours *
Percentage Sunshine
72% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Viana do Castelo typically stay consistent throughout July, with daily highs averaging around 23°C (73°F). Nights are pleasant, with lows around 15°C (59°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Viana do Castelo in July
Browse day-by-day weather records for Viana do Castelo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Viana do Castelo historical weather extremes in July
According to our 49 years of weather records for Viana do Castelo, the following extremes were recorded between 1976 and 2025.
- On July 13, 2022, temperatures climbed to 38°C (100°F), marking the warmest July day on record.
- Viana do Castelo experienced its chilliest July day on July 13, 1982, reaching only 16°C (61°F).
- The lowest overnight temperature recorded in July was 9°C (48°F) (July 11, 1993).
Best Places in Portugal in July
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in July →
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What to Wear in Viana do Castelo in July
Pleasant temperatures in July mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Viana do Castelo in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Viana do Castelo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Viana do Castelo climate overview or explore weather in Portugal.
